EP3234950A4 - Anti-scatter grid for radiation detector - Google Patents

Anti-scatter grid for radiation detector Download PDF

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Publication number
EP3234950A4
EP3234950A4 EP15896595.4A EP15896595A EP3234950A4 EP 3234950 A4 EP3234950 A4 EP 3234950A4 EP 15896595 A EP15896595 A EP 15896595A EP 3234950 A4 EP3234950 A4 EP 3234950A4
Authority
EP
European Patent Office
Prior art keywords
radiation detector
scatter grid
scatter
grid
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15896595.4A
Other languages
German (de)
French (fr)
Other versions
EP3234950B1 (en
EP3234950A1 (en
Inventor
Yanfeng Du
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai United Imaging Healthcare Co Ltd
Original Assignee
Shanghai United Imaging Healthcare Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai United Imaging Healthcare Co Ltd filed Critical Shanghai United Imaging Healthcare Co Ltd
Publication of EP3234950A1 publication Critical patent/EP3234950A1/en
Publication of EP3234950A4 publication Critical patent/EP3234950A4/en
Application granted granted Critical
Publication of EP3234950B1 publication Critical patent/EP3234950B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/06—Diaphragms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4216—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using storage phosphor screens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
EP15896595.4A 2015-10-30 2015-10-30 Anti-scatter grid for radiation detector Active EP3234950B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/093477 WO2017070961A1 (en) 2015-10-30 2015-10-30 Anti-scatter grid for radiation detector

Publications (3)

Publication Number Publication Date
EP3234950A1 EP3234950A1 (en) 2017-10-25
EP3234950A4 true EP3234950A4 (en) 2018-08-15
EP3234950B1 EP3234950B1 (en) 2022-07-13

Family

ID=58629753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15896595.4A Active EP3234950B1 (en) 2015-10-30 2015-10-30 Anti-scatter grid for radiation detector

Country Status (4)

Country Link
US (3) US10617369B2 (en)
EP (1) EP3234950B1 (en)
CN (1) CN109874343B (en)
WO (1) WO2017070961A1 (en)

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US10191162B2 (en) * 2017-05-05 2019-01-29 Prismatic Sensors Ab Radiation hard silicon detectors for x-ray imaging
EP3675741A4 (en) * 2017-08-31 2020-09-09 Shanghai United Imaging Healthcare Co., Ltd. Ct focal point determination method and system
US10158038B1 (en) 2018-05-17 2018-12-18 Hi Llc Fast-gated photodetector architectures comprising dual voltage sources with a switch configuration
WO2019221799A1 (en) 2018-05-17 2019-11-21 Hi Llc Stacked photodetector assemblies
US10340408B1 (en) 2018-05-17 2019-07-02 Hi Llc Non-invasive wearable brain interface systems including a headgear and a plurality of self-contained photodetector units configured to removably attach to the headgear
US10420498B1 (en) 2018-06-20 2019-09-24 Hi Llc Spatial and temporal-based diffusive correlation spectroscopy systems and methods
US11213206B2 (en) 2018-07-17 2022-01-04 Hi Llc Non-invasive measurement systems with single-photon counting camera
JP7166833B2 (en) * 2018-08-03 2022-11-08 キヤノンメディカルシステムズ株式会社 Radiation detector and radiation detector module
WO2020131148A1 (en) 2018-12-21 2020-06-25 Hi Llc Biofeedback for awareness and modulation of mental state using a non-invasive brain interface system and method
US10784300B1 (en) * 2019-04-16 2020-09-22 Visera Technologies Company Limited Solid-state imaging devices
JP7539926B2 (en) 2019-05-06 2024-08-26 エイチアイ エルエルシー Photodetector architecture for time-correlated single-photon counting
WO2020236371A1 (en) 2019-05-21 2020-11-26 Hi Llc Photodetector architectures for efficient fast-gating
EP3980849A1 (en) 2019-06-06 2022-04-13 Hi LLC Photodetector systems with low-power time-to-digital converter architectures
CN111067555A (en) * 2019-12-25 2020-04-28 上海联影医疗科技有限公司 CT detector
WO2021129816A1 (en) * 2019-12-28 2021-07-01 Shanghai United Imaging Healthcare Co., Ltd. Imaging systems and methods
WO2021167890A1 (en) 2020-02-21 2021-08-26 Hi Llc Wearable module assemblies for an optical measurement system
WO2021167892A1 (en) 2020-02-21 2021-08-26 Hi Llc Wearable devices and wearable assemblies with adjustable positioning for use in an optical measurement system
US12029558B2 (en) 2020-02-21 2024-07-09 Hi Llc Time domain-based optical measurement systems and methods configured to measure absolute properties of tissue
US11883181B2 (en) 2020-02-21 2024-01-30 Hi Llc Multimodal wearable measurement systems and methods
US11950879B2 (en) 2020-02-21 2024-04-09 Hi Llc Estimation of source-detector separation in an optical measurement system
US11969259B2 (en) 2020-02-21 2024-04-30 Hi Llc Detector assemblies for a wearable module of an optical measurement system and including spring-loaded light-receiving members
WO2021167893A1 (en) 2020-02-21 2021-08-26 Hi Llc Integrated detector assemblies for a wearable module of an optical measurement system
WO2021167876A1 (en) 2020-02-21 2021-08-26 Hi Llc Methods and systems for initiating and conducting a customized computer-enabled brain research study
JP7467178B2 (en) * 2020-03-16 2024-04-15 キヤノンメディカルシステムズ株式会社 Collimator and collimator module
US11877825B2 (en) 2020-03-20 2024-01-23 Hi Llc Device enumeration in an optical measurement system
US12059262B2 (en) 2020-03-20 2024-08-13 Hi Llc Maintaining consistent photodetector sensitivity in an optical measurement system
US11607132B2 (en) 2020-03-20 2023-03-21 Hi Llc Temporal resolution control for temporal point spread function generation in an optical measurement system
US11645483B2 (en) 2020-03-20 2023-05-09 Hi Llc Phase lock loop circuit based adjustment of a measurement time window in an optical measurement system
US11864867B2 (en) 2020-03-20 2024-01-09 Hi Llc Control circuit for a light source in an optical measurement system by applying voltage with a first polarity to start an emission of a light pulse and applying voltage with a second polarity to stop the emission of the light pulse
WO2021188488A1 (en) 2020-03-20 2021-09-23 Hi Llc Bias voltage generation in an optical measurement system
US11245404B2 (en) 2020-03-20 2022-02-08 Hi Llc Phase lock loop circuit based signal generation in an optical measurement system
US11187575B2 (en) 2020-03-20 2021-11-30 Hi Llc High density optical measurement systems with minimal number of light sources
WO2021188485A1 (en) 2020-03-20 2021-09-23 Hi Llc Maintaining consistent photodetector sensitivity in an optical measurement system
WO2021188496A1 (en) 2020-03-20 2021-09-23 Hi Llc Photodetector calibration of an optical measurement system
US11857348B2 (en) 2020-03-20 2024-01-02 Hi Llc Techniques for determining a timing uncertainty of a component of an optical measurement system
US12059270B2 (en) 2020-04-24 2024-08-13 Hi Llc Systems and methods for noise removal in an optical measurement system
DE102020123064A1 (en) * 2020-09-03 2022-03-03 Jena-Optronik Gesellschaft mit beschränkter Haftung Detector, optoelectronic imaging system and imaging spacecraft
CN112730477B (en) * 2020-12-22 2023-06-16 北京航星机器制造有限公司 Pre-CT collimator and manufacturing method thereof
EP4020024A1 (en) * 2020-12-22 2022-06-29 Paul Scherrer Institut Method for producing high aspect ratio fan-shaped optics
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CN114010209A (en) * 2021-06-03 2022-02-08 苏州徕泽丰材料科技有限公司 Anti-scattering grating and manufacturing method thereof
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Also Published As

Publication number Publication date
US20200237324A1 (en) 2020-07-30
CN109874343B (en) 2023-03-21
EP3234950B1 (en) 2022-07-13
US10617369B2 (en) 2020-04-14
CN109874343A (en) 2019-06-11
WO2017070961A1 (en) 2017-05-04
US20210386387A1 (en) 2021-12-16
US11839503B2 (en) 2023-12-12
EP3234950A1 (en) 2017-10-25
US20170265822A1 (en) 2017-09-21
US11103201B2 (en) 2021-08-31

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